VEVOR MS3126 Handbuch Seite 27

until you can move the belt from side-to-side with your hand. Then, center the belt
on the rollers.
② As a starting point, make sure that the ends of both tensioning screws extend
evenly approximately 1⁄4" beyond the hex nut.
— If the belt slips during operation, rotate the screws clockwise in small amounts
until the belt no longer slips on the rollers.
1.9.2 Belt tracking
① Run the conveyor belt at high speed and note if it tracks to one side or the other.
This make take a couple of minutes to show up.
Note: To avoid damaging the belt, do not allow the belt to track off the rollers.
▲ If the conveyor belt does not track to one side or the other, no further
adjustments are necessary.